MULTI-TEMPORAL MONITORING OF SLOW MOVING LANDSLIDES IN SOUTH PINDUS MOUNTAIN RANGE, CREECE Christina Psychogyiou (1), Ioannis Papoutsis (1), Charalambos Kontoes (1), Eleftheria Poyiadji(2), Natalia Spanou(2), Nikolaos Klimis(3) (1) National Observatory of Athens, Institute of Space Applications and Remote Sensing, Athens, Greece,
[email protected] (2) Institute of Geology and Mineral Exploration, Athens, Greece,
[email protected] (3) Section of Geotechnical Engineering, Department of Civil Engineering, Democritus University of Thrace, Xanthi, Greece,
[email protected] ABSTRACT datasets, primarily for detecting extremely to very slow moving landslides (according to velocity scale proposed The high frequency of landslide occurrences in Central by IGUS/WGL, 1995). The availability of pre-existing and Western Greece, part of the Pindus mountain range, landslide inventory at the region of interest provided by is now approached by exploiting the high temporal the Institute of Geology and Mineral Exploration - sampling rate of historical ERS-1/2 and ENVISAT SAR IGME-GR (Greek Geological Survey) permits the imagery in combination with the Multi Temporal spatial correlation of the MTI results with ground truth Interferometry (MTI) technique. An existing well- observations leading to an updated inventory and to established ground truth dataset is updated and enriched susceptibility statistical assessment and mapping. with the diachronic MTI results. Critical areas prone to Additionally, the wide spatial coverage of the processed slide are evaluated through susceptibility assessment frame has also allowed the recognition of subsidence and mapping taking into consideration the challenging phenomena, tectonic deformation rates and settlements environmental factors which dominate at the area of on infrastructures of economic and social impact at the interest.